No memory card is fast enough to keep the 7DII's 10 fps rate constant when shooting in full resolution RAW format. The camera has a buffer ensuring that the maximum framerate can be held for some (short) time, no matter how fast a memory card is used, but how long the framerate can be held and how low the framerate goes when buffer is full, greatly depends on how fast the camera can write the buffercontent to the used memorycard.

At Camera Memory Speed they have used a 30 MB big RAW file for their testing. Canon's RAW files vary in size (using lossless compression), and most 7DII RAW files are probably a bit smaller than the one used for this testing. So your practical output might be a bit better than these results, however no doubt that the chosen memory card is very important for the practical framerate you can get.